KR102114292B1 - Flux recovery device, soldering device and method for removing flux - Google Patents

Abstract

Provided are a flux recovery apparatus, which can remove flux inside a pipe, and a method of removing flux. According to the present invention, the flux recovery apparatus (200), as a flux recovery apparatus (200) which recovers flux from mixed gas including flux substances, comprises: a separation unit (400) which separates flux from mixed gas by using water to discharge water including the flux; a pipe (500) including a second connector (540) into which water including flux is introduced, an inclined unit (580) which is located on a downstream side lower than the second connector (540) to extend in the direction of crossing a vertical line extending in the direction of gravity, and a first connector (520) which is located on an upstream side upper than the inclined unit (580); and a pump (220) which supplies water from the first connector (520).

Description

FLUX RECOVERY DEVICE, SOLDERING DEVICE AND METHOD FOR REMOVING FLUX

The present invention relates to a flux recovery device, a soldering device, and a flux removal method.

When soldering electronic components to a circuit board, soldering devices such as reflow furnaces and sorting soldering devices are used. When soldering, a flux is applied to a soldering point on the circuit board. The flux removes the oxide film on the metal surface to be soldered, and also prevents the metal surface from reoxidizing during the heat treatment in the soldering process. Flux is mainly composed of a solid component such as rosin, thixotropic agent, and active agent dissolved in a solvent. When the flux is applied to a circuit board, for example, when using a reflow furnace, a solder paste in which the flux and solder powder are mixed to form a paste is used. The flux is applied directly to the substrate.

The flux applied as a solder paste or by a fluxer, in a preheating portion before soldering, in particular a solvent in the flux component vaporizes to become flux fume. In addition, in this heating part to be soldered, particularly solid components such as rosin in the flux component vaporize to become flux fume and float in the apparatus. These flux fumes are cooled and condensed when they come into contact with a relatively low temperature portion of the device, for example, a chain conveyor for conveying a circuit board, and further become a sticky solid when the temperature falls. Soldering apparatuses may have a problem when this solid substance is attached to or deposited on each part in the apparatus. For example, when attached in large quantities to a chain conveyor, the circuit board does not fall off the conveyor and is rolled into the sprocket of the conveyor, thereby breaking the circuit board. Moreover, if it adheres on the circuit board during conveyance, the circuit board will be damaged. For this reason, a flux recovery device is used that separates and removes the flux component from a mixed gas of an atmospheric atmosphere in the soldering apparatus, an inert atmosphere such as nitrogen, and a flux component.

Here, an example of the flux recovery device is described in Patent Document 1. The flux recovery device described in Patent Literature 1 includes a first sprinkling portion for sprinkling water in a mixed gas and a separating portion for separating the flux component from the mixed gas. In addition, the separating portion includes an introduction portion for introducing a mixed gas to an upper portion, a cylindrical body for separating a flux component having an opening at the top, and having a conical portion at the bottom, and a lid part engaged with the opening of the cylindrical body. To be equipped. The cover portion has a disk-shaped body portion, and a cylindrical portion for exhaust having a predetermined length passes through the body portion. Also, the cone has a drain.

According to this flux recovery device, when the mixed gas enters the introduction portion from the tangential direction of the cylindrical body, the mixed gas becomes a swirling flow mixed with water. Then, the flux contained in the mixed gas is cooled by water supplied into the separation unit. Thereby, while most of the flux starts to liquefy and solidify, the flux is covered with sprinkled water. That is, the flux is mixed with water, becomes water containing the flux, and is removed from the mixed gas. Thereafter, the water containing flux is separated from the swirling flow and drained from the drain. Further, the gas from which the flux has been removed is discharged from the cylindrical portion. For this reason, this flux recovery apparatus can separate the flux from the mixed gas.

In addition, the flux recovery device further includes a water purification device for purifying water containing the flux recovered from the separation unit. This water purification device is connected to the drain of the separation section. Thereby, the water containing the flux is transferred from the separation unit to the water purification device. Then, the water containing the flux is purified by a water purification device, and the flux is removed from the water containing the flux.

Japanese Patent No. 5572466

As described above, in the flux recovery device described in Patent Document 1, most of the flux is liquefied and solidified by cooling the flux component contained in the mixed gas with water. For this reason, a lot of liquefied and solidified flux is contained in the water containing the flux drained from the drain. In particular, the flux becomes a very viscous liquid at low temperatures.

Further, when the water containing the flux flows from the separation unit to the water purification device, the inside of the pipe connecting the separation unit and the water purification device flows. Here, the pipe connecting the separation unit and the water purification device may be arranged in a direction extending in various directions according to the arrangement of each component constituting the flux recovery device in view of design specifications. When the piping is arranged in a direction extending in the direction of gravity, the flux that has been liquefied and has become highly viscous can barely flow inside the piping toward the downstream direction by using gravity. However, when the piping is arranged in a direction extending beyond the gravity direction, there is a fear that the flux adheres to the inner wall of the piping and clogs the piping. In particular, when the piping is arranged to extend in a horizontal direction or a direction close to the horizontal direction, the problem that the flux attached to the inner wall blocks the piping has been remarkable.

Accordingly, an object of the present invention is to provide a flux recovery device and a flux removal method capable of removing flux in a pipe in view of the above problems.

(Form 1)

The flux recovery device according to aspect 1 is a flux recovery device for recovering flux from a mixed gas containing a flux component, separating a flux from the mixed gas using water, and discharging water containing the flux And, the second connection port through which the water containing the flux flows, located on the downstream side than the second connection port, the inclined portion extending in a direction crossing a vertical line extending in the direction of gravity and located on the upstream side of the inclined portion A pipe having a first connection port and a pump for supplying water from the first connection port are provided.

In the flux recovery device according to mode 1, even when the flux is attached to the inclined portion, the water supplied by the pump flows through the inclined portion, so that the attached flux can be floated. That is, this flux recovery device can remove the flux inside the pipe.

(Form 2)

According to the flux recovery device according to mode 2, in the flux recovery device according to mode 1, the pressure of water supplied from the first connection port by the pump is greater than the pressure of water containing the flux flowing from the second connection port. high.

The flux recovery device according to mode 2 can apply a pressure higher than the pressure of water containing the flux flowing from the second connection port to the inclined portion. For this reason, this flux recovery apparatus can make the flux which cannot be drifted under the pressure of the water flowing in from the 2nd connection port float at higher water pressure.

(Form 3)

According to the flux recovery device according to mode 3, in the flux recovery device according to mode 1 or 2, the pressure difference between the pressure of water supplied from the first connection port by the pump and the pressure on the downstream side of the inclined portion is: It is 0.1 MPa or more.

The flux recovery device according to mode 3 can cause the flux attached to the inclined portion to float off at a pressure of 0.1 MPa or more.

(Form 4)

According to the flux recovery device according to mode 4, in the flux recovery device according to any one of modes 1 to 3, the inclined portion has a straight pipe portion extending in a linear shape, and the straight pipe portion is formed from a position where the first connection port is formed. Between the downstream end, the pipe extends in a linear shape, and water supplied from the pump is injected toward the straight pipe.

In the flux recovery device according to the aspect 4, since the water supplied from the pump is injected toward the straight pipe portion, the flux attached to the straight pipe portion can be made to flow using the momentum of injection.

(Form 5)

According to the flux recovery device according to mode 5, in the flux recovery device according to any one of modes 1 to 4, the pump further supplies water to the separator.

The flux recovery device according to mode 5 can share a pump for supplying water to the separation portion and a pump for supplying water to the first connection port.

(Form 6)

In the flux recovery device according to mode 6, in the flux recovery device according to mode 5, water containing the flux discharged by the separation unit is supplied, and the water is separated from the water containing the flux to recover the flux Further, a purification device is provided, and the pump supplies water separated from the water containing the flux by the purification device to the first connection port and the separation unit.

According to the flux recovery device according to mode 6, water purified by the purification device can be used for removing the flux. That is, the flux recovery device does not need to be newly provided with a separate water supply source for supplying water used to remove the flux attached to the inclined portion.

(Form 7)

The flux recovery device according to mode 7 further includes a control unit for controlling the supply of water to the first connection port of the pump in the flux recovery device according to any one of modes 1 to 6.

According to the flux recovery device according to the mode 7, the flux can be automatically removed according to the control performed by the control unit.

(Form 8)

According to the flux recovery device according to mode 8, in the flux recovery device according to mode 7, the control unit controls the supply of the water every lapse of a predetermined time.

The flux recovery device according to mode 8 can remove the flux every time a predetermined time has elapsed.

(Form 9)

The soldering apparatus according to Embodiment 9 includes a solder processing unit and the flux recovery device according to any one of claims 1 to 8, which recovers the flux from a mixed gas containing the flux component generated in the solder processing unit.

The soldering apparatus according to the form 9 can remove the flux inside the piping as in the form 1.

(Form 10)

The flux removal method according to the form 10 is a process of separating a flux from a mixed gas containing a flux component using water, and discharging water containing the flux, and is located downstream from the second connector and the second connector A process in which water containing the flux flows from the second connection port of a pipe having an inclined section extending in a direction intersecting a vertical line extending in the direction of gravity and a first connection port located upstream of the inclined section And, it has a process of supplying water to the first connection port.

According to the flux removal method according to the form 10, even when the flux is attached to the inclined portion, the water supplied from the first connection port flows through the inclined portion, so that the attached flux can be floated. That is, this flux removal method can remove the flux inside the pipe.

According to the present invention, the flux inside the pipe can be removed.

1 is a structural diagram showing a configuration of a soldering apparatus having a flux recovery device according to a first embodiment of the present invention.
FIG. 2 is a structural diagram showing in detail the piping portion connecting the separation unit and the septic tank shown in FIG.
3 is a structural diagram showing the configuration of a portion of the piping of the flux recovery device according to the second embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings. In the drawings described below, the same reference numerals are assigned to the same or corresponding components, and duplicate descriptions are omitted.

[First Embodiment]

<Configuration>

(Full configuration)

1 is a structural diagram showing a configuration of a soldering apparatus having a flux recovery device according to a first embodiment of the present invention. Referring to FIG. 1, the soldering apparatus 100 includes a solder processing unit 120 and a flux recovery device 200. The soldering apparatus 100 is, for example, an apparatus for soldering electronic components to a substrate.

Hereinafter, each component of the soldering apparatus 100 will be described separately.

As an example, the solder processing unit 120 performs processing related to soldering, such as a process of soldering an electronic component to a circuit board or a process of preheating a circuit board. In the solder processing unit 120, a circuit board to which flux is applied is used for smooth soldering. For this reason, the flux is vaporized by the soldering process or the preheating of the circuit board, and the inside of the solder processing unit 120 floats. That is, the inside of the solder processing unit 120 is filled with a mixed gas containing a flux component. In addition, in this specification, a mixed gas means the gas in which the gaseous flux generated during the soldering process and the gas existing from the beginning in the solder processing unit 120 are mixed.

The flux recovery device 200 is a device for recovering flux from a mixed gas containing a flux component. The flux recovery device 200 is connected to the solder processing unit 120. Then, the flux recovery device 200 can recover the flux from the mixed gas inside the solder processing unit 120 and supply the recovered gas to the solder processing unit 120. The flux recovery device 200 is, for example, a separation unit 400, a pipe 500, a purification device 600, a pump 220, a valve 240, a control unit 260, a water supply tank 280, a chiller A unit 300, a condensation device 320 and a blower 340 are provided.

The separating part 400 is in fluid communication with the solder processing part 120, and is capable of sucking the mixed gas from the solder processing part 120. Further, the separating section 400 has a function of separating the flux from the inhaled mixed gas by a known method. More specifically, the separation unit 400 mixes water with the mixed gas. Thereby, the flux contained in the mixed gas is cooled by water. The cooled flux is liquefied or solidified. Thereby, the flux contained in the mixed gas is separated, and the flux is removed from the mixed gas. In addition, the liquefied or solidified flux is coated with water used for separation of the flux and discharged from the separation unit 400. For this reason, the water containing the flux is discharged from the separation unit 400 to the pipe 500.

The condensation device 320 is in fluid communication with the separating part 400, so that the gas from which the flux is removed from the separating part 400 is supplied from the separating part 400. In the separation unit 400, the flux is separated from the mixed gas using water as described above. For this reason, the gas from which the flux has been removed from the separation unit 400 contains a lot of water vapor. The condensation device 320 has a function of removing water vapor from the gas from which the flux has been removed. In addition, the condensation apparatus 320 removes water vapor from the gas from which the flux has been removed, and then supplies the gas from which the water vapor has been removed to the blower 340.

The blower 340 is in fluid communication with the condensation device 320. Then, the blower 340 has a function of sucking the gas from which the water vapor has been removed from the condensation device 320 and blowing the gas from which the water vapor has been removed to the solder processing unit 120.

The pipe 500 connects the separation part 400 and the septic tank 620 of the purification device 600. The pipe 500 has a function of supplying water containing the flux discharged by the separation unit 400 to the septic tank 620. In addition, the detailed structure of the piping 500 will be described later.

The purification device 600 has, as an example, a septic tank 620 and an ozone generator 640. The purification apparatus 600 accommodates the water containing the supplied flux in the purification tank 620. In addition, the ozone generator 640 supplies air bubbles of ozone to the septic tank 620. Accordingly, the purification device 600 decomposes the flux using ozone. Thereafter, the purification device 600 passes the filter through water containing decomposition products of the flux. Thereby, since the decomposition product is adsorbed on the filter, the purification device 600 can purify the water containing the flux.

Further, the purification device 600 is in fluid communication with the separation unit 400 via the pump 220. Thereby, the pump 220 can supply the water purified by the purification device 600 to the separation unit 400. For this reason, water can flow in the order of the separation part 400, the pipe 500, the purification device 600, and the pump 220. Further, the pump 220 supplies water purified by the purification device 600 to the first connection port 520 of the pipe 500 in addition to the separation unit 400. A valve 240 is provided between the pump 220 and the first connection port 520. By this, the valve 240 is adjusted, so that the flow rate of water supplied from the pump 220 to the first connection port 520 changes.

The control unit 260 controls the supply of water to the first connection port 520 every predetermined time. More specifically, the control unit 260 controls the opening of the valve 240 every elapse of a predetermined time.

The chiller unit 300 is attached to the purification device 600. The chiller unit 300 may cool the purified water in the purification device 600 and return it to the purification device 600 again.

The water supply tank 280 supplies water that is insufficient in the circulation of water to the septic tank 620.

(Composition of piping)

Next, with reference to FIG. 2, the more detailed structure of the piping 500 is demonstrated. 2 is a structural diagram showing in detail a portion of the pipe 500 connecting the separation unit 400 and the septic tank 620. Referring to FIG. 2, the pipe 500 has a first connector 520, a second connector 540, a third connector 560, and an inclined portion 580. The second connection port 540 is connected to the separation unit 400. For this reason, water containing flux flows into the second connection port 540. In addition, the inclined portion 580 is located downstream from the second connection port 540 and extends in a direction crossing a vertical line extending in the gravitational direction. In addition, in this specification, a pipe extending in a certain direction means that the center line of the pipe extends in a certain direction. For this reason, the inclined portion 580 is a portion of the pipe 500 extending in a direction in which the center line intersects the vertical line. In addition, the inclined portion 580 has a straight pipe portion 582 extending in a linear shape. In addition, the first connector 520 is located upstream from the inclined portion 580 and is in fluid communication with the pump 220 and the valve 240 described above (see FIG. 1). And, from the position where the first connection port 520 is formed to the downstream end 584 of the straight pipe portion 582, the pipe 500 extends in a linear shape, and the water supplied from the pump 220 is It is injected toward the straight pipe portion 582 of the inclined portion 580. In addition, the pressure of the water supplied from the first connection port 520 by the pump 220 is higher than the pressure of the water including the flux flowing from the second connection port 540, so that the water pressure of the water supplied by the pump 220 is It is set. In addition, the pressure difference between the pressure of the water supplied from the first connection port 520 by the pump 220 and the pressure on the downstream side of the inclined portion 580 is 0.1 MPa or more so that the water supplied by the pump 220 The water pressure is set. Further, in the present specification, in the case where water flowing through the first point flows through the second point after flowing through the first point, the first point is defined as the upstream side of the second point, and the second point is the It is defined downstream.

<How to remove the flux>

Next, the flux removal method of the flux recovery device 200 will be described. In explaining the method for removing the flux of the flux recovery device 200, a process in which the flux to be removed is first attached to the inner wall of the pipe 500 will be described.

When recovering the flux from the mixed gas, the separation unit 400 separates the flux from the mixed gas using water. Thereafter, the separation unit 400 discharges water containing the flux to the pipe 500. Then, the water containing the flux flows into the inside of the pipe 500 from the second connection port 540 of the pipe 500 and flows through the inclined portion 580 to the purification device 600. Here, as described above, the flux becomes a high-viscosity liquid at a low temperature. For this reason, when the water containing the flux flows through the pipe extending in the direction of gravity, it is difficult to adhere to the inner wall of the pipe, but when flowing through the interior of the pipe extending in the direction crossing the direction of gravity, the flux There is a risk of sticking to the wall. That is, there is a possibility that the flux adheres to the inclined portion 580 (see Fig. 2).

Next, a method of removing the flux 502 attached to the inclined portion 580 will be described.

In the flux recovery device 200, the control unit 260 controls the opening of the valve 240 every predetermined time (see Fig. 1). Thereby, the water supplied by the pump 220 is supplied from the first connection port 520 (see FIG. 2). Then, the supplied water flows toward the inclined portion 580. For this reason, the flux 502 attached to the inclined portion 580 is floated by the water pressure of the supplied water. That is, the flux recovery device 200 can remove the flux 502 attached to the inclined portion 580.

<Action, effect>

Next, the operation and effects of the flux recovery device 200 according to the present embodiment will be described below.

(First effect)

As described above, the flux recovery device 200 has a first connection port 520 connected to the pump 220 on the upstream side of the inclined portion 580. For this reason, the flux recovery device 200 can make the flux 502 attached to the inclined portion 580 float by flowing the water supplied by the pump 220 from the first connection port 520. In particular, in the flux recovery device 200, the pressure of the water supplied from the first connection port 520 by the pump 220 is higher than the pressure of the water containing the flux flowing from the second connection port 540. For this reason, the water supplied from the first connection port 520 can cause the flux 502 to flow through the water pressure of the water supplied from the second connection port 540.

(Second effect)

Further, in the flux recovery device 200, between the position where the first connection port 520 is formed to the downstream end 584 of the straight pipe portion 582, the pipe 500 extends in a straight line, and is supplied. The water is sprayed toward the straight pipe portion 582. For this reason, the flux 502 attached to the straight pipe part 582 can be made to flow using the force of injection.

(Third effect)

In addition, in the flux recovery device 200, in addition to supplying water to the separation unit 400, the pump 220 supplies water to the first connection port 520. For this reason, in order to remove the flux 502 attached to the inclined portion 580, the flux recovery device 200 does not need to be newly equipped with a separate pump in addition to the pump 220.

(The fourth effect)

In addition, in the flux recovery device 200, the water purified by the purification device 600 is supplied to the first connection port 520 by the pump 220. For this reason, the flux recovery device 200 uses a purification device 600 as an existing facility as a water supply source for supplying water to the first connection port 520. That is, the flux recovery device 200 does not need to have a separate water source for supplying water to be used for removal of the flux 502 attached to the inclined portion 580 in addition to the purification device 600. .

(The fifth effect)

In addition, the control unit 260 controls the opening of the valve 240 every predetermined time. For this reason, the flux recovery device 200 can remove the flux 502 every predetermined time. That is, the flux recovery device 200 may remove the flux 502 before the attached flux 502 grows with time to block the piping 500. That is, the flux recovery device 200 can suppress clogging of the pipe 500.

<Modification>

Next, a modified example of the flux recovery device 200 according to the present embodiment will be described below.

(1st modification)

In the flux recovery device 200, the pump 220 supplies water to the first connection port 520 together with the separation unit 400. However, the flux recovery device 200 may be provided with a separate pump in addition to the pump 220 to supply water to the first connection port 520 without supplying water to the separation unit 400. This is because a separate pump may supply water to the first connection port 520 even if the pump 220 does not necessarily supply water to the first connection port 520.

(Second modification)

Further, in the flux recovery device 200, the water purified by the purification device 600 is supplied to the first connection port 520, but the flux recovery device 200 is added to the purification device 600, and separate A water supply source may be provided, and this separate water supply source may supply water to the first connection port 520. Although the purification device 600 does not necessarily become a water supply source that supplies water to the first connection port 520, the flux recovery device 200 can supply water to the first connection port 520 as a separate water supply source. Because there is.

(Third variant)

In addition, the flux recovery device 200 does not need to include a valve 240 and a control unit 260. This is because the flux attached to the inclined portion 580 can be removed even if water is always sprayed from the first connection port 520.

(Fourth modification)

In addition, the flux recovery device 200 does not need to include a control unit 260. This is because even if the valve 240 is manually opened and closed, the flux recovery device 200 can remove the flux attached to the inclined portion 580.

(Fifth modification)

In addition, the flux recovery device 200 may be provided with another pipe or the like between the pipe 500 and the separation portion 400. This is because when the water containing the flux flows from the second connection port 540, the pipe 500 can flow the introduced water to the purification device 600.

(6th modification)

In addition, the pipe 500 may have a connection port other than the above-described first connection port 520, the second connection port 540, and the third connection port 560.

(7th modification)

In addition, in the flux recovery device 200, the control unit 260 controls the supply of water every lapse of a predetermined time. However, the trigger for the control unit 260 to control the supply of water is not limited to the passage of a predetermined time. The control unit 260 may control the supply of water by triggering, for example, when the device is started or when a predetermined operation is performed on the flux recovery device 200.

[Second Embodiment]

<Configuration>

In the flux recovery device according to the second embodiment, the structure of a portion of a pipe connecting the flux recovery device 200 shown in the first embodiment to the separation unit 400 and the septic tank 620 is different. 3 is a structural diagram showing the configuration of a portion of the piping of the flux recovery device according to the second embodiment. Referring to FIG. 1, the flux recovery device 700 includes a pipe 800 connecting the separation unit 400 and the purification device 600. In addition, the pipe 800 includes a first connector 820, a second connector 840, a third connector 860, a first inclined portion 882, a second inclined portion 884, and a first curved portion 886 ), And a second curved portion 887 and a vertical portion 888. Further, the first inclined portion 882 and the second inclined portion 884 can be simply referred to as inclined portions.

The pipe 800 extends from the position where the first connector 820 is formed to the first curved portion 886 in a linear shape. However, when the pipe 800 curves in the first curved portion 886, it extends in the vertical direction, and then curves again in the second curved portion 887. Here, a portion of the pipe 500 extending in the vertical line direction of the pipe 800 is called a vertical portion 888. For this reason, a vertical portion 888 exists between the first inclined portion 882 and the second inclined portion 884, and the vertical portion 888 includes the first inclined portion 882 and the second inclined portion ( 884). In addition, the second connection port 840 is connected to the separation unit 400. For this reason, water containing flux flows into the second connection port 840. In addition, the first inclined portion 882 and the second inclined portion 884 are located downstream from the second connection port 840 and extend in a direction intersecting a vertical line extending in the direction of gravity, respectively. The first connection port 820 is located upstream from the first inclined portion 882 and the second inclined portion 884 and is in fluid communication with the pump 220 and the valve 240 (see FIG. 1). . In addition, the pressure of the water supplied from the first connection port 820 by the pump 220 is higher than the pressure of the water including the flux flowing from the second connection port 840, so that the water pressure of the water supplied by the pump 220 is It is set. Further, the pressure difference between the pressure of the water supplied from the first connection port 820 and the pressure on the downstream side of the second connection port 840 by the pump 220 is supplied by the pump 220 so as to be 0.1 MPa or more. The water pressure is set.

<Action, effect>

Next, the operation and effects of the flux recovery device 700 according to the present embodiment will be described below.

(First effect)

As in the first embodiment, the flux recovery device 700 can cause the flux 802 attached to the first inclined portion 882 to float using the pressure of the supplied water.

(Second effect)

Unlike the first inclined portion 882, the second inclined portion 884 has the first inclined portion 886, the second curved portion 887, and the vertical portion 888, so that the second inclined portion ( 884) does not directly contact the water sprayed from the first connector (820). However, the flux recovery device 700 may cause the flux 804 attached to the second curved portion 887 to float by using the water pressure of the water supplied by the pump 220. That is, the flux recovery device 700 may also cause the flux in the position where the water sprayed from the first connection port 820 does not directly contact to float.

<Modification>

Next, a modified example of the flux recovery device 700 according to the present embodiment will be described below.

(1st modification)

The pipe 500 has two inclined portions of the first inclined portion 882 and the second inclined portion 884, but may have three or more inclined portions. This is because the flux attached to the inclined portion at the most downstream side can be floated by the pump 220.

As mentioned above, although the embodiment of this invention and each modified example related to it were demonstrated, it is needless to say that each example mentioned above is for ease of understanding of this invention, and does not limit this invention. The present invention can be appropriately changed and improved without departing from the gist thereof, and equivalents thereof are included in the present invention. Moreover, in the range which can solve at least a part of the above-mentioned subject, or a range having at least a part of the effect, any combination or omission of each component described in the claims and the specification can be omitted.

100: soldering device
120: solder processing unit
200: flux recovery device
220: pump
240: valve
260: control unit
280: water supply tank
300: chiller unit
320: condensation device
340: blower
400: separation
500: piping
520: first connection
540: second connection
560: Third connection
580: slope
582: straight piping
584: downstream end
600: purification device
620: septic tank
640: ozone generator
700: flux recovery device
800: piping
820: first connection
840: Second connection
860: Third connection
882: first slope
884: second slope
886: first curved part
887: second curvature
888: vertical part

Claims (10)

A flux recovery device for recovering flux from a mixed gas containing a flux component,
Separation unit for separating the flux from the mixed gas using water, and discharging the water containing the flux,
A second connecting port through which water containing the flux flows, a first inclined portion positioned downstream from the second connecting port and extending in a direction crossing a vertical line extending in a gravitational direction, and a first located at an upstream side of the inclined portion Piping with a connection,
And a pump for supplying water from the first connection port. According to claim 1,
A flux recovery device wherein the pressure of the water supplied from the first connection port by the pump is higher than the pressure of the water containing the flux flowing from the second connection port. The method of claim 1 or 2,
A flux recovery device in which the pressure difference between the pressure of water supplied from the first connection port by the pump and the pressure on the downstream side of the inclined portion is 0.1 MPa or more. The method of claim 1 or 2,
The inclined portion has a straight pipe portion extending in a linear shape,
Between the position where the first connection port is formed and the downstream end of the straight pipe portion, the pipe extends in a straight shape,
The water supplied from the pump is sprayed toward the straight pipe, a flux recovery device. The method of claim 1 or 2,
The pump further supplies water to the separator, a flux recovery device. The method of claim 5,
The purifying device further comprises: a water supply device containing the flux discharged from the separation unit, and separating a flux from the water containing the flux to recover the flux;
The pump supplies the water separated from the water containing the flux by the purification device to the first connection port and the separation unit. The method of claim 1 or 2,
And a control unit for controlling the supply of water to the first connection port of the pump. The method of claim 7,
The said control part controls the supply of the said water every lapse of a predetermined time. Solder processing unit,
A soldering apparatus comprising the flux recovery device according to claim 1 or 2, wherein the flux is recovered from a mixed gas containing a flux component generated in the solder processing section. Process for separating the flux from the mixed gas containing the flux component using water, and discharging the water containing the flux,
A second connection port, a pipe having a first connection port located downstream from the inclined section and an inclined section extending in a direction crossing a vertical line extending in a gravitational direction and located downstream from the second connection port; A process in which water containing the flux flows from the connection port;
A method for removing flux having a step of supplying water to the first connection port.

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